School of Nutrition and Health Sciences, Taipei Medical University, No. 250 Wuxing Street, Taipei, 110, Taiwan. Department of Nutrition and Health Sciences, Chinese Culture University, Taipei, Taiwan. Department of Nephrology, Taipei Medical University Hospital, Taipei, Taiwan. School of Medicine, Taipei Medical University, Taipei, Taiwan. Department of Nephrology, Taipei Medical University- Wan Fang Hospital, Taipei, Taiwan. Division of Nephrology, Department of Internal Medicine, Taipei Medical University- Shuang Ho Hospital, Taipei, Taiwan. Division of Nephrology, Cathay General Hospital, Taipei, Taiwan. Division of Nephrology, Taipei Tzu-Chi Hospital, Taipei, Taiwan. Department of Nephrology, Wei Gong Memorial Hospital, Miaoli, Taiwan. Department of Nephrology, Lotung Poh-Ai Hospital, Yilan, Taiwan. School of Public Health, Taipei Medical University, Taipei, Taiwan. Department of Family Medicine, Taipei Medical University Hospital, Taipei, Taiwan. School of Nutrition and Health Sciences, Taipei Medical University, No. 250 Wuxing Street, Taipei, 110, Taiwan. sherry@tmu.edu.tw. Research Center of Geriatric Nutrition, Taipei Medical University, Taipei, Taiwan. sherry@tmu.edu.tw. Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan. sherry@tmu.edu.tw.